Re: [PATCH v16 09/10] arm_ffa: efi: introduce FF-A MM communication

2023-07-27 Thread Gowtham Suresh Kumar
Hi Ilias, On Thu, Jul 27, 2023 at 12:58:57PM +0300, Ilias Apalodimas wrote: > On Wed, Jul 26, 2023 at 10:45:02AM +0100, Abdellatif El Khlifi wrote: > > Add MM communication support using FF-A transport > > > > This feature allows accessing MM partitions services through > > EFI MM communication p

Re: [PATCH v16 09/10] arm_ffa: efi: introduce FF-A MM communication

2023-07-27 Thread Tom Rini
On Thu, Jul 27, 2023 at 10:34:50AM +0100, Abdellatif El Khlifi wrote: > Hi Tom, > > On Wed, Jul 26, 2023 at 03:39:12PM -0400, Tom Rini wrote: > > On Wed, Jul 26, 2023 at 10:45:02AM +0100, Abdellatif El Khlifi wrote: > > > > > Add MM communication support using FF-A transport > > > > > > This fea

Re: [PATCH v16 09/10] arm_ffa: efi: introduce FF-A MM communication

2023-07-27 Thread Abdellatif El Khlifi
Hi Ilias, On Thu, Jul 27, 2023 at 02:27:21PM +0300, Ilias Apalodimas wrote: > Hi Abdellatif, > > [...] > > > +} > > + > > +/** > > + * get_mm_comms() - detect the available MM transport > > + * > > + * Make sure the FF-A bus is probed successfully > > + * which means FF-A communication with sec

Re: [PATCH v16 09/10] arm_ffa: efi: introduce FF-A MM communication

2023-07-27 Thread Ilias Apalodimas
Hi Abdellatif, [...] > +} > + > +/** > + * get_mm_comms() - detect the available MM transport > + * > + * Make sure the FF-A bus is probed successfully > + * which means FF-A communication with secure world works and ready > + * for use. > + * > + * If FF-A bus is not ready, use OPTEE comms. > +

Re: [PATCH v16 09/10] arm_ffa: efi: introduce FF-A MM communication

2023-07-27 Thread Ilias Apalodimas
On Wed, Jul 26, 2023 at 10:45:02AM +0100, Abdellatif El Khlifi wrote: > Add MM communication support using FF-A transport > > This feature allows accessing MM partitions services through > EFI MM communication protocol. MM partitions such as StandAlonneMM > or smm-gateway secure partitions which r

Re: [PATCH v16 09/10] arm_ffa: efi: introduce FF-A MM communication

2023-07-27 Thread Abdellatif El Khlifi
Hi Tom, On Wed, Jul 26, 2023 at 03:39:12PM -0400, Tom Rini wrote: > On Wed, Jul 26, 2023 at 10:45:02AM +0100, Abdellatif El Khlifi wrote: > > > Add MM communication support using FF-A transport > > > > This feature allows accessing MM partitions services through > > EFI MM communication protocol

Re: [PATCH v16 09/10] arm_ffa: efi: introduce FF-A MM communication

2023-07-26 Thread Tom Rini
On Wed, Jul 26, 2023 at 10:45:02AM +0100, Abdellatif El Khlifi wrote: > Add MM communication support using FF-A transport > > This feature allows accessing MM partitions services through > EFI MM communication protocol. MM partitions such as StandAlonneMM > or smm-gateway secure partitions which

[PATCH v16 09/10] arm_ffa: efi: introduce FF-A MM communication

2023-07-26 Thread Abdellatif El Khlifi
Add MM communication support using FF-A transport This feature allows accessing MM partitions services through EFI MM communication protocol. MM partitions such as StandAlonneMM or smm-gateway secure partitions which reside in secure world. An MM shared buffer and a door bell event are used to ex